add socket protect

client/android/src/org/amnezia/vpn/OpenVPNThreadv3.kt

@@ -82,15 +82,14 @@ class OpenVPNThreadv3(var service: VPNService): ClientAPI_OpenVPNClient(), Runna
         return true
     }
 
-    override fun tun_builder_reroute_gw(ipv4: Boolean , ipv6: Boolean ,  flags: Long): Boolean {
+    override fun tun_builder_reroute_gw(ipv4: Boolean, ipv6: Boolean , flags: Long): Boolean {
+          Log.v(tag, "tun_builder_reroute_gw")
           mService.addRoute("0.0.0.0", 0)
           return true
     }
 
     override fun tun_builder_exclude_route(address: String, prefix_length: Int, metric: Int, ipv6: Boolean): Boolean {
-        if (address.equals("remote_host"))
-        return false
-
+        Log.v(tag, "tun_builder_exclude_route")
         mService.addRoute(address, prefix_length);
         return true
     }
@@ -108,14 +107,45 @@ class OpenVPNThreadv3(var service: VPNService): ClientAPI_OpenVPNClient(), Runna
 
     override fun tun_builder_add_dns_server(address: String , ipv6: Boolean): Boolean  {
         mService.addDNS(address)
+        mService.addRoute(address, 32)
         return true
     }
 
     override fun tun_builder_set_session_name(name: String ): Boolean {
         Log.v(tag, "We should call this session: " + name)
+        mService.setSessionName(name)
         return true
     }
 
+    override fun tun_builder_set_proxy_http(host: String, port: Int): Boolean {
+          return mService.addHttpProxy(host, port);
+    }
+
+    override fun tun_builder_set_proxy_https(host: String , port: Int): Boolean {
+       Log.v(tag, "tun_builder_set_proxy_https")
+       return false
+    }
+
+    override fun pause_on_connection_timeout(): Boolean {
+       Log.v(tag, "pause_on_connection_timeout")
+       return true
+    }
+
+    override fun tun_builder_add_search_domain(domain: String ): Boolean {
+           mService.setDomain(domain);
+           return true
+    }
+
+    override fun tun_builder_set_layer(layer: Int): Boolean {
+        return layer == 3
+    }
+
+    override fun  socket_protect(socket: Int, remote: String, ipv6: Boolean): Boolean {
+        Log.v(tag, "socket_protect")
+        return mService.protect(socket);
+
+    }
+
     override fun stop() {
         super.stop()
     }

client/android/src/org/amnezia/vpn/VPNService.kt

@@ -8,6 +8,7 @@ import android.content.Context
 import android.content.Intent
 import android.os.Build
 import android.os.IBinder
+import android.net.ProxyInfo
 import android.os.ParcelFileDescriptor
 import android.system.OsConstants
 import com.wireguard.android.util.SharedLibraryLoader
@@ -152,7 +153,7 @@ class VPNService : android.net.VpnService() {
                 return 0
             }
             Log.i(tag, "Permission okay")
-            mConfig = json
+            mConfig = json!!
             mProtocol = mConfig!!.getString("protocol")
             when (mProtocol) {
                 "openvpn" -> startOpenVpn()
@@ -166,6 +167,12 @@ class VPNService : android.net.VpnService() {
         }
 
         fun establish(): ParcelFileDescriptor? {
+            mbuilder.allowFamily(OsConstants.AF_INET)
+            mbuilder.allowFamily(OsConstants.AF_INET6)
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) mbuilder.setMetered(false)
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) setUnderlyingNetworks(null)
+
             return mbuilder.establish()
         }
 
@@ -174,17 +181,37 @@ class VPNService : android.net.VpnService() {
         }
 
         fun addAddress(ip: String, len: Int){
+            Log.v(tag, "mbuilder.addAddress($ip, $len)")
             mbuilder.addAddress(ip, len)
         }
 
         fun addRoute(ip: String, len: Int){
+            Log.v(tag, "mbuilder.addRoute($ip, $len)")
             mbuilder.addRoute(ip, len)
         }
 
         fun addDNS(ip: String){
+            Log.v(tag, "mbuilder.addDnsServer($ip)")
             mbuilder.addDnsServer(ip)
         }
 
+        fun setSessionName(name: String){
+            Log.v(tag, "mbuilder.setSession($name)")
+            mbuilder.setSession(name)
+        }
+
+        fun addHttpProxy(host: String, port: Int): Boolean{
+            val proxyInfo = ProxyInfo.buildDirectProxy(host, port)
+            Log.v(tag, "mbuilder.addHttpProxy($host, $port)")
+            mbuilder.setHttpProxy(proxyInfo)
+            return true
+        }
+
+        fun setDomain(domain: String) {
+            Log.v(tag, "mbuilder.setDomain($domain)")
+            mbuilder.addSearchDomain(domain)
+        }
+
         fun turnOff() {
             Log.v(tag, "Try to disable tunnel")
             when(mProtocol){
@@ -205,7 +232,7 @@ class VPNService : android.net.VpnService() {
         private fun ovpnTurnOff() {
             mOpenVPNThreadv3?.stop()
             mOpenVPNThreadv3 = null
-            Log.e(tag, "mOpenVPNThreadv3?.stop()")
+            Log.e(tag, "mOpenVPNThreadv3 stop!")
         }
         /**
         * Configures an Android VPN Service Tunnel

client/android/src/org/amnezia/vpn/VPNServiceBinder.kt

@@ -43,7 +43,7 @@ class VPNServiceBinder(service: VPNService) : Binder() {
     * returns true if the [code] was accepted
     */
     override fun onTransact(code: Int, data: Parcel, reply: Parcel?, flags: Int): Boolean {
-        Log.i(tag, "GOT TRANSACTION $code")
+        Log.i(tag, "GOT TRANSACTION " + code)
 
         when (code) {
             ACTIONS.activate -> {